Bump k8s.io/apimachinery from 0.19.4 to 0.20.0

Bumps [k8s.io/apimachinery](https://github.com/kubernetes/apimachinery) from 0.19.4 to 0.20.0.
- [Release notes](https://github.com/kubernetes/apimachinery/releases)
- [Commits](https://github.com/kubernetes/apimachinery/compare/v0.19.4...v0.20.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

2 files changed, 6 insertions, 3 deletions

diff --git a/vendor/k8s.io/apimachinery/pkg/util/validation/field/path.go b/vendor/k8s.io/apimachinery/pkg/util/validation/field/path.go
index 2efc8eec7..f9be7ac33 100644
--- a/vendor/k8s.io/apimachinery/pkg/util/validation/field/path.go
+++ b/vendor/k8s.io/apimachinery/pkg/util/validation/field/path.go
@@ -67,6 +67,9 @@ func (p *Path) Key(key string) *Path {
 
 // String produces a string representation of the Path.
 func (p *Path) String() string {
+	if p == nil {
+		return "<nil>"
+	}
 	// make a slice to iterate
 	elems := []*Path{}
 	for ; p != nil; p = p.parent {
diff --git a/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go b/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go
index 4752b29a9..c8b419984 100644
--- a/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go
+++ b/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go
@@ -175,7 +175,7 @@ func IsValidLabelValue(value string) []string {
 }
 
 const dns1123LabelFmt string = "[a-z0-9]([-a-z0-9]*[a-z0-9])?"
-const dns1123LabelErrMsg string = "a DNS-1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character"
+const dns1123LabelErrMsg string = "a lowercase RFC 1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character"
 
 // DNS1123LabelMaxLength is a label's max length in DNS (RFC 1123)
 const DNS1123LabelMaxLength int = 63
@@ -196,7 +196,7 @@ func IsDNS1123Label(value string) []string {
 }
 
 const dns1123SubdomainFmt string = dns1123LabelFmt + "(\\." + dns1123LabelFmt + ")*"
-const dns1123SubdomainErrorMsg string = "a DNS-1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character"
+const dns1123SubdomainErrorMsg string = "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character"
 
 // DNS1123SubdomainMaxLength is a subdomain's max length in DNS (RFC 1123)
 const DNS1123SubdomainMaxLength int = 253
@@ -347,7 +347,7 @@ func IsValidPortName(port string) []string {
 // IsValidIP tests that the argument is a valid IP address.
 func IsValidIP(value string) []string {
 	if net.ParseIP(value) == nil {
-		return []string{"must be a valid IP address, (e.g. 10.9.8.7)"}
+		return []string{"must be a valid IP address, (e.g. 10.9.8.7 or 2001:db8::ffff)"}
 	}
 	return nil
 }